EP 1211092 B1 20060517 - Thermographic recording material with improved image tone
Title (en)
Thermographic recording material with improved image tone
Title (de)
Thermographisches Aufzeichnungsmaterial mit verbessertem Bildton
Title (fr)
Matériau thermographique d'enregistrement avec ton de l'image amélioré
Publication
Application
Priority
- EP 01000629 A 20011114
- EP 00204255 A 20001130
Abstract (en)
[origin: EP1211092A1] A substantially light-insensitive black and white thermographic recording material comprising a thermosensitive element and a support, the thermosensitive element containing at least one substantially light-insensitive organic silver salt, an organic reducing agent therefor in thermal working relationship therewith, an image tone stabilizer and a binder, characterized in that the image tone stabilizer is a compound according to formula (I) : <CHEM> wherein R<1> is hydrogen, an alkali metal ion, an ammonium ion, a phosphonium ion, a sulphonium ion, an alkaline earth ion or an optionally substituted alkyl, cycloalkyl, heterocyclic, alkaryl, aralkyl, heteroaryl or aryl group; R<2> is an optionally substituted alkyl, cycloalkyl, heterocyclic, alkaryl, aralkyl, heteroaryl or aryl group; or R<1> and R<2> together represent the atoms necessary to form a ring structure; and X is hydrogen, an alkali metal ion, an ammonium ion, a phosphonium ion, a sulphonium ion or an alkaline earth ion; and a recording process therefor.
IPC 8 full level
B41M 5/32 (2006.01); B41M 5/30 (2006.01); B41M 5/337 (2006.01); G03C 1/498 (2006.01)
CPC (source: EP)
B41M 5/3375 (2013.01); G03C 1/49845 (2013.01); G03C 1/4989 (2013.01); B41M 5/30 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 01000629 A 20011114